[R] 3d images
andy_liaw at merck.com
Wed Sep 19 20:34:19 CEST 2001
You're so very right! I did not realize persp in R does shading (and other
tricks) that its counterpart in Splus cannot. example(persp) shows the
capabilities very nicely.
> -----Original Message-----
> From: Ben Bolker [mailto:ben at zoo.ufl.edu]
> Sent: Wednesday, September 19, 2001 2:23 PM
> To: Liaw, Andy
> Cc: 'pawel'; R-help at stat.math.ethz.ch
> Subject: RE: [R] 3d images
> Actually, I think you're wrong ... previous correspondent noted that
> these are generated by persp() [and that the scatterplot3d
> library is also
> useful for 3D graphics, particularly since it includes primitives for
> plotting points and lines in an existing 3D perspective].
> As has probably also been pointed out, xgobi is another tool for
> rotation of point clouds.
> If anyone is interested, I have a cobbled-together solution for
> 3D-rotatable graphics; it actually uses a Java applet that
> someone else
> wrote -- my code is R code to translate a surface into Mathematica
> graphics format (!), which is what the Java applet reads as
> its input file
> (see http://www.zoo.ufl.edu/bolker/emd-2000/surf2.html for an
> Ben Bolker
> On Wed, 19 Sep 2001, Liaw, Andy wrote:
> > I believe you're seeing the output of Duncan Murdoch's Rgl
> package, which
> > links OpenGL to R. On screen, one can use the mouse to
> rotate the 3D
> > object.
> > AFAIK this is only available on Duncan's web site (do a
> google search on his
> > name and you'll see it). Currently it only runs on
> Windoze. There's a
> > paper in the DSC-2001 proceeding (link from the official R
> web site).
> > Andy
> > > -----Original Message-----
> > > From: pawel [mailto:pgajer at math.jhu.edu]
> > > Sent: Wednesday, September 19, 2001 12:25 PM
> > > To: R-help at stat.math.ethz.ch
> > > Subject: [R] 3d images
> > >
> > >
> > > Hi,
> > > The screenshots page of the R-project contains nice 3d
> > > images: "3d plot
> > > of a surface" and "image and 3d plot of a volcano".
> > > What packages were used to generate these images?
> > > Or
> > > What packages have 3d plotting capabilities?
> > > thanks
> > > pawel
> > >
> > >
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